



W. S. HADAWAY, JR.

HEATER FOR LINOTYPE POTS.

APPLICATION mu) 056.23.1911'1.

g al 15 Patented Nov. 4, 1919.

2 SHEETS-SHEEF I.

1 6 I 7y j w P INVENTOR W. S. HADAWAY, Ia.

HEATER FOR UNOTYPE POTS.

APPLICATION HLED oc.23. |9|5,

1 ,32 1 ,07 1 Patented Nov. 4, 1919.

2 SHEETSSHEEF 2.

INVENTOR jrromvsr WILLIAM s. HAIDAWAY, an, or New ROCHELLE, new YORK.

HEATER- roa mnoms-rors,

Specification of Letters Yatent.

Patented Nov. 4, 1919.

Application flied December 28, 1915. Serial No. 68,334.

To all whom it may concern: v

Be it known that I, WiLLmM S. Hamwsr, Jr., a citizen of the United States of America, and a resident of New Rochelle, Westchester county, and Stateof-New "York,

have invented certain new and useful Im- '"provemen'ts in Heaters for Linotype-Pots,

of which the following is a specification, ref- 1 erence being had to'the accompanyingdrawing, forming apart thereof. A

' I "nventionrelates to electric heaters and as special reference to the heating of me ting pots forlinotype machines and ma.-

7 chines of like character.

with electric heaters 'to' melt the metal and to keep the-metal in a molten condition as it passes through the throat and mouth of the pot, When heaters for the mouth and throat m zg lied externally 'tlie-heat .be

metal introduced and the frequency with p which it is put in.

By theuse of my present invention I have avoided the inherent disadvantages above outlined, by providing a preheater for melts ing the slugs, and one or more removable internal heaters for the mouth and throat.

One object of my invention is to provide an internal mouth and throat heater for linotypepots that shall be readily removable, practically indestructible and which shall in no wise interfere with the operation 46 nfthe t: r I

Ano't er object is to provide a preheater which may be set into of the usual form --and which is adapted not only to gradually meltthe-metal, but furthermore to coast-:- tute a hot diaphragm or screen to keep the solid metal slu out of the body or well of the pot until t ey are melted.

Another object is to provide a simple a'nd economical means for imparting heat difilrectly to the mouthiece of a linotype pot'. Other objects an advantages of my in- Lintoypepots havehitherto been-provided vention will be set forth hereinafter, and in order that my invention may be thoroughly understood I will now proceed to'describc the same in the followin specification and so then point out the novel eaturcs thereof in apfiznded claims.

ferring to the drawings:

Figure 1 is a transverse sectional elevation of a linotype pot equipped with the heaters of my invention.

F1 .2 1s a plan view of the prehenlcr whic is utilized in Fig. 1, and

Fig. 3 is-a transverse sectional elevation taken on the line 33of Fig. 1 and showing the internal throat heater.

Fig. his a. plan view ofthe linotype pot with certain of the arts broken away to show the heaters wi in.

Figs-5 and Gare detail views of the throat and mouth heater,

Fig. 6 being drawn to a'larger scale.

Fig. 7 is-a transverse sectional elevation of amodification of my invention in which two intemalthroat heaters instead of one, so

are eigployed.

In gs. 1 and 4, 10 represents the bod of the lmot pot, and 11 the outer she I with the insu ation 12 between the two. The plunger well is indicated at 13 14 is these throat and 15 is the cover.

Inthe body of the pot surrounding the well 13 is a heater 16 which is in the fol-m? of a segment of a hollow cylinder and preferably comprises insulated resistance elements closely incasedin a metallic armor or shell as hereinafter set"forth.

Mounted in the openin of the pot above the well is a preheater l "which, as clearly shown in'Fig. 2, isin fiieljorm of a dish or receptacle having a hole 19 in its bottom'surface and armored electric heating elements 20 'in' its bottom and side walls The preheater has aflange 21 which may rest upon the rim of the pot and supports it in the position desired, 'althoughsome pther suitable means may be employed. ,It may be mounted onthe' well heater 16 for example. The usual lid 23, provided in the cover 15,

of metal to be introduced permits slu readily to te 'reheater.

The sizean capacigy of the preheater may of course be oonsi erably varied from the proportions illustrated, depending upon the requirements of the work. I- prefer to 1-10 make the preheater sufficiently large, allowing it to extend upward outsidPofthePot if ily appreciated b those skilled in this art.

I therefore inten that on] such limitations be imposed as are indicate in the appended claims. v 5 For convenience I have used the term linotype pot as representative of any typesetting machine crupible.

What I claim is:

1'. An internal heater for linotype pots having'a body and a throat or outlet through which molten metal is adapted to be dlS charged, said heater being formed and adapted to be inserted in the throat or outlet. and to im art heat to the molten metal therein without interfering with the flow of metal therethiough' 2. An internal heater for linotype pots having a body and a throat or outlet through which molten metal is adapted to be discharged, said heater being curved to con-- form to the interior walls of the throa'toroutlet andadaptedtobe'insertedtherein and to im art'heatto the-moltcn metal. without inter ring with the how of metal there through;- l

, 3. electric heater for linotype pots *comprising a curved armored electric heater having aflange at 'its outer and engaging :the mouth of thepot and'a body shaped to 80 conform tothe throat of the heater.

4. An electric heater 'for (-linotypepots" comprising a thin, armored heater curved to conform to and .adaptedfto ex'tendintothe throat of the linotype pot and having an pptumedflange at its outerend adaptedpo engage thamouth o'f thepot. .-An..-e 'lectrie' heater for linotype pots comprising a curved armored electric heater having aperforatedfian at its outer end 40 engaging the mouth of t e 'pot'and a body shaped to conform -'to the throat of the heater.

6.'An electric heater for linotype pots comprising a thin, armored heater curved to conform to and adapted to extend into the throat of the Iinot pe pot and having an upturned perforate end adapted to engage the mouth oi the ot. p 7. A heater for linotype pots comprising an electric heater in the form of;a dish or receptacle having a perforated bottom and adapted to be suspended in the body of the pot to receive metal slugs, and internal 56 means for heating the metal in the throat of 'Ihe pot.

, 8. A heater for linotype pots comprising an electric heater in the form of a dish or receptacle having a perforated bottom and 60 adapted to be suspended ,in the body of the pot to receive metal slu means for imparting heat to the metal in the well of the pot, and internal means for heating the metal in the throat of the pot. v 9 A heater for linotype pots comprising flange at its outer an electric heater in the form of a dish or receptacle having a perforated bottom and adapted to be suspended in the body of the at to receive metal slugs, and a throat eater comprising a thin, armored heater curved to conform to and adapted to extend into the throat of the linotype pot and having an upturned flange at its outer end adapted to engage the mouth of the pct.

10. A heater for linotype pots comprising an electric heater in the form of a dish or receptacle having a perforated bottom and adapted to be suspended in the body of the pot to receive meta] sings, a curved heater in the pot surrounding the well, and comprising a thin, armored heater curved to conform to and adapted to extend into the throat of the linotype pot and having an upturnedflangeat its outer end adapted to engage the mouth of the pct.

11. A heater for linotype pots comprising a curved bod .adaptedto extend into and heat the meta ,in the throat of the put, and a pro ection adapted to impart heat directly to the mouthpiece of'the pot. 12. A heater forlinotype pots comprising -a curved body adapted to extend into and heat the metal in the throat of the pot, and an upsturned' flange adapted to impart heat directly to the mouthpiece of the pot. l 13. Aheater for linotype pots comprising a curved body adapted to extend into and heat'the metal in the throat of the pot, and an upturned flange adapted to be wedged mtoelose contact with the month-pieceof the t and to impart heat directly thereto. 1 Heating apparatus for linotype pots comprising a pair of spaced heaters adapted to be inserted in the throat of the pot and to-engiiige the respective surfaces thereof.

15. eating apparatus for linotype pots comprising a pair of spaced heaters adapted to be inserted in the throat of the pot and forming a lining therefor, at least one of said heaters having means for imparting heat directly to the mouth-piece of the pot.

16. Heating apparatus .forlindtype pots comprising a pair of spaced heaters adapted to beinserted in the .throat of the pot and forming a lining therefor, each of said heaters having an end flange adapted to be wedgfd into contact with the mouth-piece f t e pot and to impart heat directly thereto.

17. The combination with a melting .pot having a branch or outlet, of a heater extending within the branch or outlet without preventing the discharge of molten metal therethrough.

18. The combination with a melting t having a. branch or outlet, a removal le heater extending within the branch or outlet without obstructing the same and adapted to impart heat to the molten metal as it ,is discharged therethrough.

20. An electric heater for linotype pubadapted to extend into the throat or outlet] of the pot. shaped to substantially eont'orm to the interior walls thereof. and embodying meana for concentrating heat at the month of the. throat or outlet.

2]. X heater for linotype pots comprising a body adapted to extend into and heal the metal in the throat f the pot, and means for eoneentrat-ing heat at the outlet of the pot.

2;. A heater for linotype puts eumpri ing a body adapted to extend into and heat the metal in the. throatof the pot, and means adapted to impartheat directly to the mouth pieee of the put.

23. Heating apparatus for linotype pots mnnprising a. plurality of heaters adapted to lminserted in the throat of the pot and to enga ye the interior surfaces thereof.

24. I eating apparatus for linotype pt'ita comprising a, plurality of heaters adapted to be inserted n1 tla-..t,hroat o the pot, and to eaga e the interior surfaces thereof, each of. said waters having meanafor imparting heat directly to the month pieee. of the put.

25. Heating apparatus for linotvpe. pols mmprising a plurality of heaters adapted -to be inserted in the throat of the. pot and to engage the interior sin-fares thereof. each of said heaters having a flange for impart,- ing heat directly to the month piece of the. pot.

26. heater for linolype pots ha\'in a body adapted to eontain molten metal and an outlet lhrongn whieh the molten metal i dlsrharged. said heater eomprising a inetallie reeeptaele having an opening from which molten metal is di el2arged into the hotly of the pot. the walls of said heater having electric heating elements embedded therein.

2?. heater for linotype pots comprising an el rie heater in the form of a dish or re eptael'e having a perforated lmttom and aT'lapted to he suspended in the body of the pot to reet ve. metal slugs.

2H. preheater furlinotyue pots comprising a rreeptaele adapted to contain metallic sings and to extend within the body of the pot, said receptacle havino a perforatml lower wall to permit moten metal to pass between the race itacle and the had of the pot, and eleetrie heaters for gradualty melting 'the metal in the receptaelea.

21'. The eomhiuation with a linotype pot. having a. body adapted to contain molten metal and an outlet from which the metal is discharged. a preheater eompriain; a metal reeeptaele having eleetrie heaters mhedded in its walla. said heater being set in the top of the body melting potand having dieehargopenings to constitute a screen for holding olid metal and for permitting molten metal to pits-*3 between the receptacle; and the hotly of the pot.

in \(lllttfia' whereof. I have hereuntoset my hand this 21 day of Deeember, 191a"). 

